【英文标准名称】:StandardPracticeforStrainControlledThermomechanicalFatigueTesting
【原文标准名称】:应变控制式热机械疲劳试验的标准实施规程
【标准号】:ASTME2368-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E08.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Strain-controlledtesting;Thermomechanicalfatiguetesting(TMF)
【摘要】:Intheutilizationofstructuralmaterialsinelevatedtemperatureenvironments,componentsthataresusceptibletofatiguedamagemayexperiencesomeformofsimultaneouslyvaryingthermalandmechanicalforcesthroughoutagivencycle.Theseconditionsareoftenofcriticalconcernbecausetheycombinetemperaturedependentandcycledependent(fatigue)damagemechanismswithvaryingseverityrelatingtothephaserelationshipbetweencyclictemperatureandcyclicmechanicalstrain.Sucheffectscanbefoundtoinfluencetheevolutionofmicrostructure,micromechanismsofdegradation,andavarietyofotherphenomenologicalprocessesthatultimatelyaffectcycliclife.Thestrain-controlledthermomechanicalfatiguetestisoftenusedtoinvestigatetheeffectsofsimultaneouslyvaryingthermalandmechanicalloadingsunderidealizedconditions,wherecyclictheoreticallyuniformtemperatureandstrainfieldsareexternallyimposedandcontrolledthroughoutthegagesectionofthespecimen.1.1Thispracticecoversthedeterminationofthermomechanicalfatigue(TMF)propertiesofmaterialsunderuniaxiallyloadedstrain-controlledconditions.Ax201C;thermomechanicalx201D;fatiguecycleisheredefinedasaconditionwhereuniformtemperatureandstrainfieldsoverthespecimengagesectionaresimultaneouslyvariedandindependentlycontrolled.ThispracticeisintendedtoaddressTMFtestingperformedinsupportofsuchactivitiesasmaterialsresearchanddevelopment,mechanicaldesign,processandqualitycontrol,productperformance,andfailureanalysis.Whilethispracticeisspecifictostrain-controlledtesting,manysectionswillprovideusefulinformationforforce-controlledorstress-controlledTMFtesting.1.2Thispracticeallowsforanymaximumandminimumvaluesoftemperatureandmechanicalstrain,andtemperature-mechanicalstrainphasing,withtherestrictionbeingthatsuchparametersremaincyclicallyconstantthroughoutthedurationofthetest.Norestrictionsareplacedonenvironmentalfactorssuchaspressure,humidity,environmentalmedium,andothers,providedthattheyarecontrolledthroughoutthetest,donotcauselossoforchangeinspecimendimensionsintime,andaredetailedinthedatareport.1.3Theuseofthispracticeislimitedtospecimensanddoesnotcovertestingoffull-scalecomponents,structures,orconsumerproducts.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.
【中国标准分类号】:A40
【国际标准分类号】:19_060
【页数】:10P.;A4
【正文语种】:英语


【英文标准名称】:Gaseousfuelsandothergases;types,constituents,application;remarksontheproduction
【原文标准名称】:气体燃料和其它气体.种类,成份和使用.产品标记
【标准号】:DIN1340Bb.1-1990
【标准状态】:现行
【国别】:德国
【发布日期】:1990-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:气体;气体燃料;生产;类型表示法;发电;燃料;名称与符号;分类
【英文主题词】:fuelgases;gaseousfuels;generation;typedesignation;classification;gases;production;designations;fuels
【摘要】:
【中国标准分类号】:G86;E46
【国际标准分类号】:5660
【页数】:4P;A4
【正文语种】:德语